Set Up TLS on a Grandstream UCM Device Using a Public SSL Certificate

Mark Berry September 27, 2016

I wanted to get TLS connections working between remote Grandstream phones connected over the Internet to a Grandstream UCM6102 PBX. This location already has an SSL certificate for its web site issued by a public Certification Authority. Here’s how to set up TLS with that kind of certificate.

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PBX in a Flash as a Virtual Machine, Take 2: Hyper-V

Mark Berry February 16, 2010

Back in November 2008, I blogged  about Setting Up PBX in a Flash, Part 1: Configuring a Virtual Machine. That article discussed running PBX in a Flash (PiaF) under Microsoft Virtual PC or Virtual Server 2005. Within a couple weeks, I abandoned the virtual machine approach and published Moving PBX in a Flash from a Virtual to a Physical Machine.

Recently I’ve been testing Microsoft’s free bare-metal hypervisor, Microsoft Hyper-V Server 2008 R2. Especially now that Hyper-V supports Red Hat Enterprise Linux, could Hyper-V be the answer to virtualizing PiaF on a Microsoft platform?

Let’s try it and see what happens.

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Setting Up PBX in a Flash, Part 4: Configuring a Linksys SPA3102

Mark Berry November 6, 2008

I’ve just posted a series of articles on selecting a VoIP PBX and setting it up under Microsoft Virtual Server. To read the series from the beginning, see Getting Into VoIP.

Setting up an Analog Terminal Adapter (ATA) for a VoIP system is normally something you do while configuring the PBX. However, since it is configured as a separate device using its own web interface, it seemed to warrant its own blog entry.

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Setting Up PBX in a Flash, Part 3: Configuring FreePBX

Mark Berry November 6, 2008

If you’ve been following along through the introduction, part 1, and part 2, you now have a PBX in a Flash (PiaF) setup running under Microsoft Virtual Server. It’s keeping time, it knows who it is and can send out mail. Now it is finally time to configure the PBX itself!

Setting up the PBX involves a few steps:

Updating and Adding FreePBX modules
Configuring Trunks, Extensions, and Routes
Configuring Other Features

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Setting Up PBX in a Flash, Part 2: Before Running FreePBX

Mark Berry November 6, 2008

The first article in this series, Getting Into VoIP, gave an overview of VoIP systems that I tested and why I chose to implement PBX in a Flash (PiaF). The next post, Setting Up PBX in a Flash, Part 1: Configuring a Virtual Machine talked about setting up PiaF under Microsoft Virtual Server. In this post, we’ll finish all the steps needed to complete our basic installation before configuring the PBX itself.

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Setting Up PBX in a Flash, Part 1: Configuring a Virtual Machine

Mark Berry November 6, 2008

The introduction to this series, Getting Into VoIP, explained some of the requirements and testing that went into choosing a VoIP environment and application. One really-want (if not must-have) requirement is getting it to run in a virtual machine. There are so many advantages to virtualization:  easy backups and moving VMs to different hosts, to name two. However…

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Getting Into VoIP

Mark Berry November 6, 2008

It all started with my new Magicjack. Plug this little gizmo into your PC and you get unlimited domestic calling, $40 for the first year and $20/year thereafter. That’s hard to pass up. But it also means that I now have three phone lines coming into the home office. So I either needed to get a bigger analog phone, or get into a PBX.

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